Diorite and Laterite
Definition
Definition
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene
Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas
History
Origin
Unknown
India
Discoverer
Unknown
Francis Buchanan-Hamilton
Etymology
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish
From Latin later brick, tile + -ite1
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
Not Applicable
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Phaneritic
Earthy, Massive, Porphyritic
Color
Black, Brown, Light to Dark Grey, White
Brown, Buff, Red
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
No
No
Scratch Resistant
No
No
Stain Resistant
No
No
Wind Resistant
Yes
No
Acid Resistant
No
No
Appearance
Shiny
Rough and Banded
Uses
Architecture
Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Flooring, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration
As Building Stone, As Facing Stone, Garden Decoration
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate
Cobblestones, for Road Aggregate, Landscaping, Roadstone
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture
Other Uses
Commercial Uses
Creating Artwork, Curling
An Oil and Gas Reservoir, Source of bauxite, Used in aquariums
Types
Types
Not Available
Not Available
Features
Typically speckled black and white.
Is one of the oldest rock, Very fine grained rock
Archaeological Significance
Monuments
Used
Used
Famous Monuments
Data Not Available
Data Not Available
Sculpture
Used
Used
Famous Sculptures
Data Not Available
Data Not Available
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Used
Used
Fossils
Absent
Present
Formation
Formation
Diorite is a coarse-grained intrusive igneous rock which contains large interlocking and randomly oriented crystals and forms when molten lava does not reach the Earth’s surface and cools down in the Earth’s crust.
Laterite is a type of sedimentary rock which is generally a reddish weathering product of basalt.
Composition
Mineral Content
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon
Aluminum Oxides, Biotite, Hematite, Hornblade, Iron Oxides, Manganese Oxides, Micas, Muscovite or Illite, Plagioclase, Pyroxene
Compound Content
Silicon Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Transformation
Metamorphism
Yes
No
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Not Applicable
Weathering
Yes
Yes
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
6-7
2
Grain Size
Medium to Coarse Grained
Fine Grained
Fracture
Not Available
Conchoidal
Streak
Bluish Black
White
Porosity
Very Less Porous
Highly Porous
Luster
Shiny
Dull
Compressive Strength
225.00 N/mm2
7
Not Available
Cleavage
Not Available
Not Applicable
Toughness
2.1
Not Available
Specific Gravity
2.8-3
Not Available
Transparency
Opaque
Opaque
Density
2.8-3 g/cm3
Not Available
Thermal Properties
Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant
Reserves
Deposits in Eastern Continents
Asia
Not Yet Found
India
Africa
Egypt
East Africa, Western Africa
Europe
Finland, Germany, Italy, Romania, Sweden, Turkey, United Kingdom
England, Romania, Scotland
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
USA
Canada, USA
South America
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru
Not Yet Found
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
Central Australia, Western Australia
All about Diorite and Laterite Properties
Know all about Diorite and Laterite properties here. All properties of rocks are important as they define the type of rock and its application. Diorite belongs to Igneous Rocks while Laterite belongs to Sedimentary Rocks.Texture of Diorite is Phaneritic whereas that of Laterite is Earthy, Massive, Porphyritic. Diorite appears Shiny and Laterite appears Rough and Banded. The luster of Diorite is shiny while that of Laterite is dull. Diorite is available in black, brown, light to dark grey, white colors whereas Laterite is available in brown, buff, red colors. The commercial uses of Diorite are creating artwork, curling and that of Laterite are an oil and gas reservoir, source of bauxite, used in aquariums.
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